INFO: task syz-executor.0:23313 blocked for more than 430 seconds.
Not tainted 6.4.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:0 pid:23313 ppid:23311 flags:0x00000005
Backtrace:
[<817fa420>] (__schedule) from [<817fb07c>] (schedule+0x5c/0xac kernel/sched/core.c:6745)
r10:eac05dcc r9:00000002 r8:eac05d7c r7:987b1780 r6:eac05dc4 r5:eac05dc8
r4:987b1780
[<817fb020>] (schedule) from [<81802750>] (schedule_timeout+0xd0/0x108 kernel/time/timer.c:2143)
r5:eac05dc8 r4:7fffffff
[<81802680>] (schedule_timeout) from [<817fc47c>] (do_wait_for_common kernel/sched/completion.c:85 [inline])
[<81802680>] (schedule_timeout) from [<817fc47c>] (__wait_for_common kernel/sched/completion.c:106 [inline])
[<81802680>] (schedule_timeout) from [<817fc47c>] (wait_for_common kernel/sched/completion.c:117 [inline])
[<81802680>] (schedule_timeout) from [<817fc47c>] (wait_for_completion+0x70/0x14c kernel/sched/completion.c:138)
r6:eac05dc4 r5:eac05dc8 r4:7fffffff
[<817fc40c>] (wait_for_completion) from [<811b3a9c>] (vhost_dev_flush drivers/vhost/vhost.c:243 [inline])
[<817fc40c>] (wait_for_completion) from [<811b3a9c>] (vhost_dev_flush drivers/vhost/vhost.c:234 [inline])
[<817fc40c>] (wait_for_completion) from [<811b3a9c>] (vhost_dev_stop+0xec/0x138 drivers/vhost/vhost.c:646)
r10:400004d8 r9:00000000 r8:86adca58 r7:00000000 r6:86ad8000 r5:86ada550
r4:00000002
[<811b39b0>] (vhost_dev_stop) from [<811aa05c>] (vhost_vsock_dev_release+0xd4/0x180 drivers/vhost/vsock.c:735)
r7:86adca00 r6:00000000 r5:86ad8000 r4:86adc000
[<811a9f88>] (vhost_vsock_dev_release) from [<804cfeb0>] (__fput+0x84/0x264 fs/file_table.c:321)
r9:00000000 r8:84ae4a90 r7:8377ec50 r6:83d92440 r5:000e001f r4:849ff480
[<804cfe2c>] (__fput) from [<804d010c>] (____fput+0x10/0x14 fs/file_table.c:349)
r9:00000000 r8:987b1fbc r7:828515e0 r6:987b1780 r5:987b1f8c r4:85cd29c0
[<804d00fc>] (____fput) from [<802678bc>] (task_work_run+0x8c/0xb4 kernel/task_work.c:179)
[<80267830>] (task_work_run) from [<80248cc4>] (exit_task_work include/linux/task_work.h:38 [inline])
[<80267830>] (task_work_run) from [<80248cc4>] (do_exit+0x314/0xa9c kernel/exit.c:874)
r9:00000000 r8:eac05e9c r7:98518040 r6:987b1fb8 r5:98518000 r4:987b1780
[<802489b0>] (do_exit) from [<80249634>] (do_group_exit+0x40/0x8c kernel/exit.c:1024)
r7:eac05f58
[<802495f4>] (do_group_exit) from [<80258184>] (get_signal+0x9b4/0xa28 kernel/signal.c:2876)
r7:eac05f58 r4:987b1780
[<802577d0>] (get_signal) from [<8020bd14>] (do_signal arch/arm/kernel/signal.c:577 [inline])
[<802577d0>] (get_signal) from [<8020bd14>] (do_work_pending+0x134/0x538 arch/arm/kernel/signal.c:617)
r10:5ac3c35a r9:0004dfac r8:00000000 r7:fffffe30 r6:eac05f44 r5:eac05fb0
r4:987b1780
[<8020bbe0>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x20)
Exception stack(0xeac05fb0 to 0xeac05ff8)
5fa0: 00000000 00000000 00000000 00000000
5fc0: 00000000 00000000 00000000 762d7473 7eeb93c2 76bc96d0 7eeb9534 76bc920c
5fe0: 20000110 20000100 0001711c 0004dfb0 60000010 00000000
r10:00000000 r9:987b1780 r8:80200288 r7:762d7473 r6:00000000 r5:00000000
r4:00000000
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.4.0-rc5-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace:
[<817da118>] (dump_backtrace) from [<817da20c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
r7:00000000 r6:00000113 r5:60000193 r4:81f9d804
[<817da1f4>] (show_stack) from [<817f6ce0>] (__dump_stack lib/dump_stack.c:88 [inline])
[<817da1f4>] (show_stack) from [<817f6ce0>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106)
[<817f6c98>] (dump_stack_lvl) from [<817f6d04>] (dump_stack+0x18/0x1c lib/dump_stack.c:113)
r5:00000001 r4:00000001
[<817f6cec>] (dump_stack) from [<817c7a68>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<817c7908>] (nmi_cpu_backtrace) from [<817c7bb8>] (nmi_trigger_cpumask_backtrace+0x134/0x1dc lib/nmi_backtrace.c:62)
r7:8260c498 r6:00000000 r5:8261a840 r4:00000001
[<817c7a84>] (nmi_trigger_cpumask_backtrace) from [<80210814>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:855)
r9:00060380 r8:82604d40 r7:00007f3c r6:82896230 r5:8260c614 r4:832e5464
[<802107fc>] (arch_trigger_cpumask_backtrace) from [<8033df44>] (trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline])
[<802107fc>] (arch_trigger_cpumask_backtrace) from [<8033df44>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline])
[<802107fc>] (arch_trigger_cpumask_backtrace) from [<8033df44>] (watchdog+0x498/0x5a0 kernel/hung_task.c:379)
[<8033daac>] (watchdog) from [<8026b1a4>] (kthread+0x100/0x130 kernel/kthread.c:379)
r10:00000000 r9:df819e5c r8:83224340 r7:00000000 r6:8033daac r5:83270bc0
r4:832aff80
[<8026b0a4>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:133)
Exception stack(0xdf8cdfb0 to 0xdf8cdff8)
dfa0: 00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026b0a4 r4:832aff80
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 23325 Comm: syz-executor.0 Not tainted 6.4.0-rc5-syzkaller #0
Hardware name: ARM-Versatile Express
PC is at 0x2193c
LR is at 0x2193c
pc : [<0002193c>] lr : [<0002193c>] psr: 20000010
sp : 7ec475c8 ip : 00000000 fp : ffffffff
r10: 000001f4 r9 : 00002328 r8 : 00140000
r7 : 7ec47694 r6 : 00000000 r5 : 7ec47640 r4 : 0000056b
r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : 00002328
Flags: nzCv IRQs on FIQs on Mode USER_32 ISA ARM Segment user
Control: 30c5387d Table: 87f34f00 DAC: fffffffd
Backtrace:
Backtrace aborted due to bad frame pointer <ffffffff>